Kina Barrens
A kina barren is an area which has been depleted of all life- exept for kina. this is largely due to overfishing and the rapid reproduction of kina from sea temperatures rising. Kina barrens can devastate entire coastlines and are actually pretty easy to find, especially in the Coromandel, and the Bay of Plenty. Some might think its ideal because its an easy feed of kina, but in reality when there is no kelp, there is nowhere for fish to breed, and for juvenile fish and crustaceans to hide, leaving behind a wasteland of barren white rock.
Us divers at SUNZ Kina have a few cleanup projects that are well underway, and you can follow them here